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Loans Receivable - Impaired Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Loans without a specific valuation allowance |  |  |
Recorded Balance | $ 1,282 | $ 1,494 |
Unpaid Principal Balance | 1,332 | 1,571 |
Specific Allowance | 0 | 0 |
Average Balance | 1,326 | 2,312 | $ 2,448
Interest Income | 26 | 74 | 57
Loans with a specific valuation allowance |  |  |
Recorded Balance | 0 | 37 |
Unpaid Principal Balance | 0 | 51 |
Specific Allowance | 0 | 15 |
Average Balance | 28 | 40 | 1,761
Interest Income | 1 | 4 | 10
Total impaired loans |  |  |
Recorded Balance | 1,282 | 1,531 |
Unpaid Principal Balance | 1,332 | 1,622 |
Specific Allowance | 0 | 15 |
Average Balance | 1,354 | 2,352 | 4,209
Interest Income | 27 | 78 | 67
Investor commercial real estate |  |  |
Loans without a specific valuation allowance |  |  |
Recorded Balance | 0 | 87 |
Unpaid Principal Balance | 0 | 87 |
Specific Allowance | 0 | 0 |
Average Balance | 21 | 666 | 239
Interest Income | 2 | 5 | 0
Loans with a specific valuation allowance |  |  |
Average Balance | 0 | 0 | 1,617
Interest Income | 0 | 0 | 5
Residential mortgage |  |  |
Loans without a specific valuation allowance |  |  |
Recorded Balance | 1,133 | 1,139 |
Unpaid Principal Balance | 1,154 | 1,146 |
Specific Allowance | 0 | 0 |
Average Balance | 1,112 | 1,266 | 1,894
Interest Income | 8 | 32 | 29
Loans with a specific valuation allowance |  |  |
Recorded Balance | 0 | 0 |
Unpaid Principal Balance | 0 | 0 |
Specific Allowance | 0 | 0 |
Average Balance | 15 | 0 | 66
Interest Income | 0 | 0 | 3
Other consumer |  |  |
Loans without a specific valuation allowance |  |  |
Recorded Balance | 149 | 268 |
Unpaid Principal Balance | 178 | 338 |
Specific Allowance | 0 | 0 |
Average Balance | 193 | 380 | 315
Interest Income | 16 | 37 | 28
Loans with a specific valuation allowance |  |  |
Recorded Balance | 0 | 37 |
Unpaid Principal Balance | 0 | 51 |
Specific Allowance | 0 | 15 |
Average Balance | 13 | 40 | 78
Interest Income | $ 1 | $ 4 | $ 2

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